Math, asked by rtpavan2005, 11 months ago

sin 1 + sin 2 ..... sin 89​

Answers

Answered by umadevidussa6
3

Step-by-step explanation:

=sin 1+sin2+sin3+......sin89

=sin 1+ sin 2+ sin 3......sin (90-3)+sin( 90-2)+sin(90-1)

=sin1 +sin2+sin3+......cos 3+cos 2+cos1

sin and cos get cancelled

so only sin45 remains after cancelling

so answer=sin45=1/root 2

please mark my answer as brainliest...

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